Who are the Dinobots

I have so little knowledge of Transformers. Therefore I needed this researched. Now I know that the Dinobots are from the Autobot fraction and are normal Transformers who turn into dinosaurs instead of cars. I find that weird. They can sustain a lot of damage and are pettty powerful as well. Unlike the rest of the Autobots, the Dinobots can fly, something similiar to the Decepticons. They are independent and would often leave the rest of the autobots mid-mission to do their own stuff. So from what I see, the dinosaurs will be on Optimus's side in the movie, unless Michael Bay changes it. I find the whole idea of Dinobots weird, but it might work well. We have to wait and see.